Daylily (Hemerocallis sp.)-Hort Answers - University of Illinois Extension
University of Illinois Extension

University of Illinois Extension

Hort Answers

Perennial

Daylily
Hemerocallis sp.


 
Features
A very large group of plants that offer sizes from 12 inches to 4 feet tall in many colors and bloom periods. A versatile perennial that can fit into most any type of garden situation. 
 
Culture
Will grow in moist well drained soil in a sun to partial shade situation. 
 
Cultivars

Hundreds to choose from. Some include:

'Spellbinder' 34 inches tall, repeat bloomer, yellow

'Catherine Neal' 25 inches tall, repeat bloomer, purple

'Royal Occasion' 26 inches tall, repeat bloomer, purple

'Pardon Me' 18 inches tall, repeat bloomer, red

'Rosey Returns' 14 inches tall, repeat bloomer, pink

 
 
Mature Height
12 Inches - 4 Feet
 
Size
Small
Medium
Tall
 
 
USDA Hardiness Zone
3 - 9 
 
Bloom Color
Bi-color
Orange
Peach
Pink
Purple
Red
Salmon
White
Yellow
 
 
Bloom Season
May - September
 
Soil Conditions
Moist, Well-Drained
 
 
Exposure/Light Requirements
Full Sun
Partial Sun/Shade
 
 
Foliage Color
Green
 
 
Pests and Problems

Environmental Damage

Fungal Disease

Insect Damage

Insect Relative Damage


Additional pests and problems that may affect this plant:

Colleocephallus streak, Aureobasidium, mites, thirps, aphids
 
Additional Notes
Very adaptable and very useful in the landscape. The repeat blooming types benefit from division every 2-3 years as it is the new rhizomes that produce new flowers. Selecting and planting the repeat types also allows for extended bloom in the garden. Daylilies are heavy feeders. Deadhead to achieve re-bloom. Some offer fragrant flowers.

 

 
Related Resources
Home, Yard & Garden Pest Guide
Illinois Commercial Landscape and Turfgrass Pest Management Handbook
U of IL - Distance Diagnosis through Digital Imaging
U of IL - Plant Clinic